A simple example of advanced optimization of Laravel cache

Laravel provides five cache driver modes:

• File system
• Database
• Memcached
• APC
• Redis
• Memory (Arrays)

By default, Laravel is configured to use the file system cache driver, which does not need to be configured. the file system driver stores cached items as files in the storage/cache directory. if you are satisfied with this driver, no other configuration is required. use it directly:

Tip: before using the file system cache driver, make sure that your storage/cache directory is writable.

When using Cache in Laravel, you can use the Cache Facade, which is convenient and elegant. The common Cache method is as follows:

$ Value = cache-> get ('key ');
If ($ value = false ){
$ Value = DB-> where ('XX')-> get ();
$ Value = cache-> set ('key', $ value );
Cache-> expire ('key', 1800 );
}

This logic uses the remember method and closure function in Laravel, which can be very elegant and convenient to express. The three lines of code implement the above process.

As follows:

Use App \ Http \ Requests;
Use App \ Models \ Wp;
Use Illuminate \ Support \ Facades \ Cache;
 
Class BlogController extends Controller
{
Private $ indexPostsKey = 'com. tanteng. me. index. blog. Posts ';
 
Public function index ()
    {
$ NewPosts = Cache: store ('redis ')-> remember ($ this-> indexPostsKey, 30, function (){
Return Wp: type ('post')-> status ('Publish ')-> orderBy ('post _ date', 'desc')-> take (16) -> get ();
});
Return View ('index/blog ', compact ('newposts '));
    }
}

This is just a simple example of using cache in Laravel. This is also the way to obtain the list of Blog pages on this site. First, find the cache, do not query the database returned in the closure, and cache it for 30 minutes, cache: store ('file') allows you to conveniently use different Cache methods.